High quality, durable fiberglass and nylon design. Improve putting alignment, length of stroke, eye line, ball position, swing plane and more. Idea for greens, fairways with the good visual training aid. Improve your putting, scores. Easy to use putting aid, recommend for golfers of all abilities and skill level. Included portable and lightweight storage tube . Easy to store in your bag. Features - Color: Black. - Material: Glass-Fiber. - Diameter: Approx. 24x4x4cm. - High quality, durable fiberglass and nylon design. - Improve putting alignment, length of stroke, eye line, ball position, swing plane and more. - Idea for greens, fairways with the good visual training aid. Improve your putting, scores. - Easy to use putting aid, recommend for golfers of all abilities and skill level. - Included portable and lightweight storage tube . Easy to store in your bag.